Science

Sunday, 8 February 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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lava
Magma can also solidify deep within the Earth's crust.
It then forms intrusions, bodies of rock that have penetrated between older rock formations. In the ...
Snow
Snow crystals were first photographed in 1879.
This was done by German lawyer, astronomer, naturalist, and nature photographer Johann Heinrich Ludw ...
NASA
The historical landing was a part of the Apollo 11 mission.
On July 20th, 1969, Neil Armstrong walked on the lunar surface as the first human in history. Edwin ...
Milky Way
In addition to the stellar halo, our galaxy is also surrounded by a halo made of hot gas, which is much more extensive than the stellar halo.
Its temperature is from 1 million to 2.5 million degrees Celsius and it extends for hundreds of thou ...
Graphene
Graphene is an allotrope of carbon consisting of a single layer of atoms arranged in a two-dimensional honeycomb nanostructure (an intermediate-sized structure between microscopic and molecular structures).
Allotropy is the phenomenon of the existence of different varieties of the same chemical element in ...
Earth
Although it's hard to believe, the Earth's crust consists of 47 percent oxygen.
It is trapped in the soil in the form of various oxides, the most common of which are: silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, and iron oxide.
Cosmos
The next stage was the Dark Ages and the formation of large cosmic structures.
This period lasted from 370 thousand to 1 billion years after the Big Bang. During this time, matter ...
Anorexia Nervosa
The exact cause of anorexia is not yet known.
It is thought to consist of a combination of biological, psychological, and environmental factors.
Earth
Earth is a planet full of life. It is inhabited by approximately 11 million species, of which approximately 1.9 million have been described so far.
Below you will find a short list of the most important organisms along with the approximate number o ...
Graphene
Although graphene consists of an element that is abundant on Earth, its production costs are high.
This is a major obstacle to graphene finding mass application in many fields. For now, only small amounts are produced.